PYROLACEAE (WINTERGREEN FAMILY) 367 



Ovate to oblong, usually mottled or blotched . . . . 2. P. picta. 



Leaf-blades oval or elliptic, membranous 3. P. elliptica. 



Flowers pink or purple; bog plant . . . . . . . 4. P. uliginosa. 



Style straight; anthers connivent. 



Raceme regular; style short . . . . . . . . 5. P. minor. 



Raceme 1-sided; style elongated 6. P. secunda. 



1. Pyrola chlorantha Sw. Act. Holm. 190, PL 5. 1810. Leaves small, 

 1-3 cm. in diameter, orbicular or nearly so, coriaceous, not shining, shorter 

 than the petiole: scape 1-2 dm. high, 3-10-flowered : calyx-lobes very short 

 and obtuse or rounded, appressed to the greenish- white corolla: anther-cells 

 with distinctly beaked tips: style strongly declined or decurved and toward 

 the apex more or less curved upward, longer than the concave, somewhat 

 campanulate-connivent or partly spreading petals; stigma much narrower 

 than the truncate and usually excavated apex of the style, which forms a 

 ring or collar. Mountains of Colorado, northward and eastward. 



2. Pyrola picta Smith, Rees, Cycl. 29: No. 8. Leaves firm-coriaceous, 

 dull, commonly veined or blotched with white above, pale or sometimes pur- 

 plish beneath, 3-5 cm. long, broadly ovate to spatulate or narrowly oblong, 

 all longer than the petiole, the margins quite entire or rarely remotely denticu- 

 late: scapes 1-2 dm. high, 7-15-flowered; bracts few and short: calyx-lobes 

 ovate, not half the length of the greenish- white petals: style as in the preced- 

 ing. Western Wyoming to Utah and California and thence northward. 



3. Pyrola elliptica Nutt. Gen. 1: 273. 1818. Leaves oval or broadly ob- 

 long, 4-6 cm. long, membranaceous, acute or merely roundish at base, longer 

 than their petioles, plicately serrulate: scape 1-2 dm. high, loosely several to 

 many-flowered: calyx-lobes ovate and acute, short: corolla greenish- white: 

 anther-tips hardly at all beaked: style as in the preceding. Mountains of New 

 Mexico to British Columbia, the northern Atlantic States, and Canada. 



4. Pyrola uliginosa Torr. Fl. N. Y. 1: 453. pi. 60. 1843. Scape 1.5-4 dm. 

 high, 7-15-flowered: blades broadly oval or orbicular, dull, rather thick, 

 obscurely crenulate, obtuse at both ends: flowers 10-16 mm. broad: calyx- 

 lobes oblong or ovate-lanceolate, one fourth to one third the length of the 

 petals: anther-sacs beaked: capsule about 5 mm. in diameter; style slightly 

 exserted. (P. asarifolia Michx. is very similar and scarcely distinguishable 

 except by the somewhat smaller subcordate leaves.) In bogs; across the 

 continent northward and south in the mountains to Colorado. 



5. Pyrola minor L. Sp. PL 396. 1753. Leaves orbicular, thinnish, ob- 

 scurely serrulate or crenulate, about 2 cm. long: scape 10-15 cm. high, 7-15- 

 flowered: petals white or flesh-colored, orbicular, naked at the base, globose 

 connivent: stigma peltate, large, obscurely 5-lobed; hypogynous disk none; 

 style straight, much narrower than the expanded, depressed, 5-rayed stigma: 

 anthers not narrowed below the openings. Mountains; from New Mexico to 

 Oregon and northward, thence eastward across the continent. 



6. Pyrola secunda L. 1. c. Inclined to be caulescent from a branching base: 

 leaves thin, ovate, serrulate or crenate, 3-5 cm. long: scape 10-15 cm. long, 

 bearing numerous flow r ers in a secund, spike-like raceme : petals greenish- white, 

 oblong, each with a pair of tubercles on the base, equally connivent: stigma 

 peltate, large, 5-lobed; hypogynous disk 10-lobed. Mountains of Colorado, 

 California, and far northward and eastward. 



2. MONESES Salisb. 



Petals 5, widely spreading, orbicular. Filaments awl-shaped, naked; 

 anthers as in Pyrola, but conspicuously 2-horned. Style straight, exserted; 

 stigma large, peltate, with 5 narrow and conspicuous radiating lobes. Valves 

 of the capsule naked. (Flowers occasionally tetramerous) . Scape 1-flowered. 

 Otherwise as Pyrola; intermediate between it and Chimaphila. 



1. Moneses uniflora (L.) Gray, Man. 273. 1848. Herb with 1-flowered 

 scape 5-10 cm. high, a cluster of roundish and serrulate thin leaves at base 

 on a short stem or the ascending summit of a filiform rootstock : corolla white 



